Wheel-httb



C. S. ASH.

WHEEL HUB.

APPucmon mep ^uG.|o.19|a.

INVENTOH C. J M

c. S. ASH.

WHEEL HUB.

APPLICATION FILED AuG.Io, Isla. Patntedsepu 23, 1919 II I@ IIII W! CHARLES S. ASH, 0F G-EINEVA,` NEW YORK.

WHEEL-HUB.

Specication of Letters Patent.

:Patented sept. 23, 1919.

Application tiled August 10, 191B. Serial No. 249,276.

To all whom it may concern:

Be it -known that I, CHARLES S. ASH, a citizen of the United States, residin at Geneva, in the county of Ontario and btate of New York, have 'y invented certain new and useful Improvements in Wheel-Hubs, of which the following `is a full', clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same. Y

This Iinvention relates to quick-detachable vehicle wheels ofthe type wherein an outer hub, structurally associated with the tirecarrying rim by spokes or otherwise, 1s

'adapted to tremovably over an inner hub arranged on the vehicle axle, and interlocking parts are provided to effect transmisslon of the driving 'and braking forces through the inner hubto the wheel. v i

The invention is more particularly directed to an improved construction of the two hubs and their `rotary interlocking connection whereby removal of the wheel is facilitated and wear or mutilation of the rotary interlocking parts in service is substantially eliminated.

A further object is to provide a wheel construction of the character mentioned having functional advantage, manufacturing econom and structural superiority.

ther objects and advantages will be in part `noted hereinafter in connection with the following description of the accom anying drawings, which illustrate typica embodiments of the invention, and in whichrFigure 1 is an end elevational view of an outer hub mounted on an inner hub;

Fig. 2 is a partial central sectional view through the hubs;

Fig. 3 is a transverse sectional view on the plane of line 3-3 of Fig. 2;

Fig. 4 is a detail sectional View of a modlfed form of driving lug; and

Fig. 5 is a partlal central sectional -viewV throufrh inner and outer hubs embodying a modified form of the invention.

Referring more particularly tothe drawings, there 1s shown a sheet metal outer hub 1 connected, by spokes 2 or otherwise, with a tire-carrying rim (not shown) and adapted to fit removably over an inner hub` 3 ar-` ranged for mounting on the vehicle axle and fixedly associated with the latter by suitable means. In the case of the driving wheel the inner hub 3 is adapted to transmit the driving and brakin forces by means of complementary proJections 5 on the inner hub received in recessed. sockets 6 in the outer hub whereby a relative rota lock is insured when the parts are assemble Heretofore it has been common to support the inner end of the-outer hub .on the inner hub by circumferentially continuous contacting surfaces, whereby alinement of the hubs is insured, while the driving and braking forces are transmitted by axial driving lugs on the inner hub radially spaced from said contacting surfaces and received in lcomplementary apertures in the outer hub. By the present invention the projections 5 on the inner hub function both to transmit the driving and braking forces and to support the inner end of the outer hub in alinement and .at circumferentially spaced oints of limited area only. Referring to ig. 2, the inner hub wall is provided with a plurality, in this instance three, of integrally offset projections 5 extendin 'radially axially beyond the planes o the adjacent metal, and the outer hub is provided with a similar number of integrally recessed sockets 6 opening radially and axially to receive projections 5. The outer hub is otherwise spaced from and out of contact with the inner hub. The non-symmetrical inter-engaging surfaces of the two hubs, when assembled, consequently effect alinement thereof, establish a rotary lock, andfurthermore afford a radial support for the outer hub, at

its inner end, at points symmetrically ar'- ranged about the axis and circumferentially spaced intervals. As a result ofthe lastmentioned'action the two hubs are always capable of easy separation, since freezing therebetween over the contact surfaces is minimized and practically eliminated. At the same time the interlocking convexities and concavities 6 being integrally formed in the hubs by drawing ori otherwise, facilitates and cheapens the manufacture of the hubs and reduces the number of arts.

and

Save at the points mentioned, the outer 11 at the extremity of the outer hub 1. The operation of these parts will be apparent. That is, as nut 7 is screwed lhome on the inner hub, surfaces 10 and 1l contact and wedge together to effectively lock the nut against loosening and also to aline andreinforce the outer end of theouter hub in correct assembly.

In the modification shown in Fig. 4 the integrally recessed sockets 6 of the outer hub remain as before. Rigid complementary driving pins are employed on the vinner nub to seat therein for establishing the roiarv lock and supporting the outer hub.

A further modification, illustrated in Fig. 5, embodies integral concavities, 6 on the outer hub which are radially spaced farther from the axis and open in an axial direction only to receive the tapered ends 12 of complementary rigid driving lugs 5 disposed at corresponding intervals on the inner hub 8. In this construction, as in the others, however, the contacting bearing surfaces of the driving ,lugs 5 and sockets 6 constitute the support for the outer-hub and establish its alinement. By reason, likewise of the end taperv12 of theidriving lugs and the compleinentary inclined walls of the socket 6, self alinement and uniform wear is insured. That is to say, provision is .made whereby the outer hub is always movable inwardly to an alined limit when the cap nut 7 is threaded home.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a wheel of the character described, in combination, an inner hub having a plurality of rigid projections disposed symmetrically about its axis, and anouter hub fitting removably upon said inner hub` and having its wall indented to :provide interior recesses opening radially and axiallyy to receive and bear on said projections only whereby said -hubs are alined in assembly, are locked against rotation, 'andthe outer hub is supported at circumferentially spaced points only on said-inner hub.`

n 2. Ina wheel of the character described, in combination, an inner hub having a. plurality of rigid integral projections, disposed V symmetrically abouti its axis and having curved outer bearing surfaces', and a` ysheet metal outer hub fitting removably over said inner hub and having imperforate concavities .complementary to said projections for receiving the latter, whereby said h-ubs are alined in assembly and locked against relative rotation, said outer hub being supported on said projections and otherwise spaced from said inner hub, and said elements being constructed and arranged so that the areas of the bearing surfaces are materially less than 'the circumferentially adjacent spaced areas.

3. In a wheel of the character described, in combination, an inner hub having a p1urality of driving convexities disposedl about its axis, and an outer hub removably fitting over said inner hub and having a plurality of complementary coneavities to receive and bear on said convexities, whereby said hubs when assembled are locked against relative rotation, the inside of said outer hub being otherwise spaced from and unsupported by said inner hub.

4. In a wheel of the character described, in combination, an inner hub having a plu.- rality of rigid driving projections disposed about itsaxis, a sheet metal outer hub removably fitting over said inner hub and having a plurality of complementary sockets to receive and bear upon said projections, whereby said hubs when assembled are locked against relative rotation, said outer hub being otherwise spaced from said inner hub, and a cap nutv threaded on the outer end of one of said hubsand contacting with the outer end of the other for maintaining the saine in alinement and holding it vagainst axial displacement.

5. In a wheel of the character described, in combination, an inner hub having a plurality of rigid driving projections `disposed about its axis, an outer hub removably fit* ting over said inner hub and having comtions for locking said hubs when assembled against relative rotation, said outer hub be ing otherwise lspaced from said inner hub and having an externally inclined surface at its outer end, and a cap nut threaded externally on the outer end of said inner hub and having an inclined portion to bear against the inclined portion of said outer hub for retaining said hubs against axial displacement and maintaining the outer ends thereof in alinement. l

6. In a quick detachable wheel, in combination, an inner hub, an outer hub adapted for spoke and rim attachment telescoping thereon, said hubs having interfitting parts adjacent their inner ends affording loadsupportingbearings and the remaining interior of said outer hub being spaced from and unsupported by said inner hub, and a securing nut screwing on said inner `hub and y J. R. MA'rsoN, y H. E. VAN HORN.- 

